Impact of additional small-scale survey data on the geostatistical analyses of demersal fish species in the North Sea

Autor: Vanessa Stelzenmüller, Siegfried Ehrich, Gerd Peter Zauke

Publikováno v: Scientia Marina, Vol 69, Iss 4, Pp 587-602 (2005)

Geostatistical tools have been used to study the impact of additional small scale catch data (star survey design) on the spatial analysis of fish, regarding different biological groups of dab, Limanda limanda and whiting, Merlangius merlangus. A stan

Externí odkaz: https://doaj.org/article/dbd9deb467fb414d8707560a01ada3f1

Lesser black-backed gulls (Larus fuscus) consuming swimming crabs: An important link in the food web of the southern North Sea

Autor: Siegfried Ehrich, Stefan Garthe, Philipp Schwemmer, Henriette Schwemmer

Publikováno v: Estuarine, Coastal and Shelf Science. 119:71-78

Swimming crabs (Liocarcinus spp.) are one of the most common brachyuran species in the North Sea, and their abundance has substantially increased over the last century. Seabirds such as lesser black-backed gulls (LBBG) commonly feed mainly on higher-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3a87993db04fb505b27c4f38b0bd0307
https://doi.org/10.1016/j.ecss.2012.12.021

Temporal variability of three different macrofauna communities in the northern North Sea

Autor: Ulrike Schückel, Siegfried Ehrich, Ingrid Kröncke

Publikováno v: Estuarine, Coastal and Shelf Science. 89:1-11

In 1999, 2003 and 2007 macrofauna communities were sampled in three different areas (“Boxes”) of 10 × 10 nautical miles in the northern North Sea in order to study the temporal changes in community structure in relation to changes in temperature

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::da4e37de756e23c30d91ce48ffb6312f
https://doi.org/10.1016/j.ecss.2010.04.006

Length-weight relationships of 216 North Sea benthic invertebrates and fish

Autor: I.J. de Boois, L. Lindal Jorgenson, M.R. Robertson, Steven Degraer, Johan Craeymeersch, Siegfried Ehrich, Ruth Callaway, John E. Lancaster, Henning Reiss, Leonie A. Robinson, A. Goffin, Ingrid Kröncke, Simon P. R. Greenstreet, Helen M. Fraser

Publikováno v: Journal of the Marine Biological Association of The United Kingdom, 90(1), 95-104
Journal of the Marine Biological Association of The United Kingdom 90 (2010) 1

Size-based analyses of marine animals are increasingly used to improve understanding of community structure and function. However, the resources required to record individual body weights for benthic animals, where the number of individuals can reach

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eddb0030edc60e83889af4eab071041e
https://doi.org/10.1017/s0025315409991408

Effects of fishing disturbance on benthic communities and secondary production within an intensively fished area

Autor: Wim J. Wolff, Katrin Sieben, Ingrid Kröncke, Gerjan J. Piet, Floor Quirijns, Simon P. R. Greenstreet, Siegfried Ehrich, Leonie A. Robinson, Henning Reiss

Publikováno v: Marine Ecology Progress Series, 394, 201-213. INTER-RESEARCH
Marine Ecology Progress Series 394 (2009)
Marine Ecology Progress Series, 394, 201-213

Demersal fishing alters seabed habitats and affects the structure and functioning of ben- thic invertebrate communities. At a critical level of disturbance, such communities may approach an equilibrium disturbed state in which a further increase in d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::78bf707e302bd0343c0ec3aceca0c9d5
https://hdl.handle.net/11370/477f5bdf-2c7e-40db-815f-cd7958412634